function Hour(color) {
  Second.call(this, color || 'red');
}
Hour.prototype = Object.create(Second.prototype);
Hour.prototype.constructor = Hour;
Hour.prototype.showPara = function () {
  var args = {};
  var time = new Date();
  var m = time.getMinutes();
  var s = time.getSeconds();
  var h = time.getHours();
  h = h > 12 ? h - 12 : h;
  args.duration = 43200;
  args.delay = -s - m * 60 - h * 60 * 60 - 9 * 60 * 60;
  args.zIndex = 8;
  return args;
};
Hour.prototype.layoutPara = function () {
  var args = {};
  args.r = Control.cRadius * 0.5;
  args.offsetR = args.r * 0.15;
  args.height = args.r * 0.03;
  return args;
};
